The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

With an atmosphere, by mass, of primarily hydrogen (76 per cent) and helium (24 per cent), and by volume of 89 per cent ...

A couple of weeks ago I visited Bungie HQ in Bellevue, Washington to play a build of The Edge of Fate, Destiny 2's first major expansion since the conclusion of the series' 10 year 'Light & Dark' ...

"Are we alone?" This ancient question has occupied humanity's mind for a long time. In 1995, the discovery of the first ...

Scientists say a new planetarium show about the Milky Way has helped them unlock one of the solar system’s many secrets.

Scientists may have found a planet orbiting two brown dwarfs at a wild 90-degree tilt—something never seen before.

Though full terraforming may take centuries, if not millennia, the long-term goal would be a Mars with stable liquid water, ...

National Geographic Society with the support of Rolex, launched the Perpetual Planet Amazon Expedition, a one-of-a-kind ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it. Some ...